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FIx previous case for TYA as well

This commit is contained in:
drmortalwombat 2024-10-06 22:31:22 +02:00
parent 439cf499ed
commit b622c25a56
1 changed files with 29 additions and 1 deletions
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30
oscar64/NativeCodeGenerator.cpp
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@ -45941,7 +45941,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerIterate3(int i, int pass)
}
else if (
mIns[i + 0].ChangesAccuAndFlag() && mIns[i + 0].mMode == ASMIM_IMPLIED && mIns[i + 0].mType != ASMIT_TXA &&
(mIns[i + 1].mType == ASMIT_INX || mIns[i + 1].mType == ASMIT_DEX || mIns[i + 1].mType == ASMIT_INY || mIns[i + 1].mType == ASMIT_DEY) &&
(mIns[i + 1].mType == ASMIT_INX || mIns[i + 1].mType == ASMIT_DEX) &&
mIns[i + 2].mType == ASMIT_ORA && mIns[i + 2].mMode == ASMIM_IMMEDIATE && mIns[i + 2].mAddress == 0)
{
mIns[i + 2] = mIns[i + 0];
@ -45949,6 +45949,34 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerIterate3(int i, int pass)
mIns[i + 1].mLive |= LIVE_CPU_REG_A;
return true;
}
if (
mIns[i + 0].mType == ASMIT_TXA &&
mIns[i + 1].mType == ASMIT_DEX &&
mIns[i + 2].mType == ASMIT_ORA && mIns[i + 2].mMode == ASMIM_IMMEDIATE && mIns[i + 2].mAddress == 0 && !(mIns[i + 2].mLive & (LIVE_CPU_REG_A | LIVE_CPU_REG_C)))
{
mIns[i + 0].mType = ASMIT_NOP; mIns[i + 0].mMode = ASMIM_IMPLIED;
mIns[i + 2].mType = ASMIT_CPX; mIns[i + 2].mMode = ASMIM_IMMEDIATE; mIns[i + 2].mAddress = 0xff;
return true;
}
else if (
mIns[i + 0].ChangesAccuAndFlag() && mIns[i + 0].mMode == ASMIM_IMPLIED && mIns[i + 0].mType != ASMIT_TYA &&
(mIns[i + 1].mType == ASMIT_INY || mIns[i + 1].mType == ASMIT_DEY) &&
mIns[i + 2].mType == ASMIT_ORA && mIns[i + 2].mMode == ASMIM_IMMEDIATE && mIns[i + 2].mAddress == 0)
{
mIns[i + 2] = mIns[i + 0];
mIns[i + 0].mType = ASMIT_NOP; mIns[i + 0].mMode = ASMIM_IMPLIED;
mIns[i + 1].mLive |= LIVE_CPU_REG_A;
return true;
}
else if (
mIns[i + 0].mType == ASMIT_TYA &&
mIns[i + 1].mType == ASMIT_DEY &&
mIns[i + 2].mType == ASMIT_ORA && mIns[i + 2].mMode == ASMIM_IMMEDIATE && mIns[i + 2].mAddress == 0 && !(mIns[i + 2].mLive & (LIVE_CPU_REG_A | LIVE_CPU_REG_C)))
{
mIns[i + 0].mType = ASMIT_NOP; mIns[i + 0].mMode = ASMIM_IMPLIED;
mIns[i + 2].mType = ASMIT_CPY; mIns[i + 2].mMode = ASMIM_IMMEDIATE; mIns[i + 2].mAddress = 0xff;
return true;
}
else if (
mIns[i + 0].mType == ASMIT_LDA &&
mIns[i + 1].mType == ASMIT_STA &&